There shall exist only one Official Zoning Map, which shall be kept in the office of the Town Clerk and shall bear the Seal of the Town of Riga, a certification by the Town Clerk that it is the "Official Zoning Map of the Town of Riga" and its date of adoption. Said Zoning Map shall be on material suitable for reproduction. Any copies of this map which may from time to time be published and distributed shall be used for reference purposes only. Changes made in district boundaries or other matters portrayed on the Zoning Map under the provisions of this chapter shall be permanently affixed to the Zoning Map promptly after the amendment has been approved by the Town Board and shall convey information as to the date and nature of the change. Should the Zoning Map become damaged, destroyed, lost or difficult to interpret because of the changes and additions, the Town Board may, by resolution, authorize a new Official Zoning Map to be prepared, incorporating any amendments or changes adopted subsequent to the preparation of the former map. Such new map shall bear a date of preparation and a listing of all changes and amendments incorporated thereon.